This requires evaluating water - bearing formations in their operation as filer plants.这就要求评价含水层作为过滤装置的运用.An evaluating index system is established for degenerated estuarine ecosystem restoration.摘要建立了退化河口生态系统恢复评价指标体系.Ev...
以非质子酸氯化亚锡为催化剂,催化合成了丁醛-1,2-丙二醇缩醛.Butyraldehyde 1,2 proparediol acetal was synthesized by using stannous chloride as catalyst.以非质子酸氯化亚锡为催化剂,催化合成了丁醛-1,2-丙二醇缩醛.Butyraldehyde 1,2 propanediol acetal was synthesized by using st...
Current economic hardships weigh heavily in young women's decisions to find salaried work...目前的经济困难大大影响着年轻妇女在寻找有薪水的工作时的决定。...salaried employees...拿薪水的雇员The high - salaried manager replaced the business tycoon.高薪经理取代...